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Finding the Fourth Proportional to 15,793.68, 21,794.94 and 9,079.13

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Solution

The fourth proportional to 15,793.68, 21,794.94 and 9,079.13 is: 12,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.68 : 21,794.94 = 9,079.13 : x
  2. Step 2: Convert to fraction form
    15,793.68/21,794.94 = 9,079.13/x
  3. Step 3: Cross multiply
    15,793.68x = 21,794.94 × 9,079.13
  4. Step 4: Simplify right side
    15,793.68x = 197,879,093.60
  5. Step 5: Solve for x
    x = 197,879,093.60/15,793.68
  6. Step 6: Final answer
    x = 12,529.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.